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Hunan Puqi Geologic Exploration Equipment Institute is a professional institution in china who engaged in the R & D, manufacturing and sales of pipe water leak detector, leakage automatic analyser, geophysical prospecting underground water detector, cavity detector, mine locator, dam piping detector, borehole inspection camera and pipeline detector. More than 200 staffs, including 16 senior engineer, 49 intermediate engineer.
 �Underground Water Detector
ï?·Water Leak Detector
ï?·Handheld Water Detector
ï?·Borehole Inspection Camera
ï?·Pressure Pipeline Leakage Automatic Analyser
ï?·Dam Piping Leak Detector
ï?·Earth Resistivity Meter
ï?·Mine Locator
ï?·V4 Archaeological Detector
ï?·Pipeline detector

Hunan Puqi Geologic Exploration Equipment Institute (PQWT), based in Changsha China.
we are specialized to researches and development, manufacturing and sales of:
�ground water detector,
�Mine locator,
�Pipe leak detector,
�Underground metal,
�Metal pipeline detector,
�V4 archaeological detector
�and X-ray security inspection equipment.

PQWT has over 15 years of experience and focuses on Hydro geological exploration, Intelligent data-capture technology and Application of special technique, carrying out Scientific research, technical services and Marketing application business.
More than 200 staffs, including 16 senior engineer, 49 intermediate engineer.
we established long-term cooperation relationship with many scientific research institutes in Germany, US, Australia, Hong Kong and other countries, which brings great success to our products all over the world.

10-160 MHz Low Phase Noise OCXO


The Low Phase Noise OCXO Frequency Reference is a high-performance signal source engineered for applications where signal purity and stability are critical. With its ultra-low phase noise and robust design, it serves as an ideal reference clock for satellite systems, communication infrastructure, and precision instrumentation.

Key Features & Benefits
Ultra-Low Phase Noise: Achieves â??170 dBc/Hz at 1 kHz offset, ensuring clean signal generation for sensitive RF systems.

Wide Frequency Range: Covers 10 to 160 MHz, with standard outputs at 50, 80, 100, and 120 MHz.

High Stability: Excellent temperature stability (�±0.05 to �±0.5 ppm) and low aging rate (�±0.3 ppm after 30 days).

Rugged & Reliable: Meets MIL-standard environmental tests including shock, vibration, humidity, and thermal cycling.

Flexible Power Supply: Operates from 5 V to 12 V DC with low steady-state power consumption of 1.5 W.

Prostatitis Photon Physiotherapy Instrument
The Prostatitis Photon Physiotherapy Instrument offers 250mW/cm² of medical-level curative irradiation energy. Designed for treating male conditions such as prostatitis, prostatic hyperplasia, nocturnal polyuria, urinary frequency, weak urination, urine dripping, and urgent urination, this device provides effective and targeted relief.

Advantages
- Primary Advantages
Advantage 1: Pain-free, non-invasive, no side effects, resolving urinary difficulties (Effectively Targeting Prostate Gland Treatment)
Easetak Photon Therapy emits 450-900nm light waves, penetrating the dense capsule of the prostate and reaching the affected gland, facilitating rapid repair of the prostate gland tissue. It effortlessly clears any blockage in the urethra, resulting in natural and unobstructed urination! It offers even stronger penetration and longer-lasting photon capability, with two wavelengths directly reaching the gland.
Advantage 2: Clinical Medical-grade optical power density of 150-250mW/cm�²
The prostate is located deep within the human body, and the number of treatment photons that penetrate through layers of tissues to reach the prostate is the ultimate factor that directly affects efficacy. This is why a light power density of 150-250mW/cm² or above is commonly used in the clinical application of photodynamic therapy. The Easetak Prostate Photon Therapy Device adopts a clinical medical-grade light power density of 150-250mW/cm², meeting medical-grade standards and achieving better treatment effects for enlarged prostate treatment.

Concord medical limited is a hong kong wholly-owned enterprise established in 2010. We introduce advanced equipments and technologies from china and overseas. We own numbers of patented products and have strong technology development capability. We dedicate to the development, production and marketing of high quality medical-grade material products.
Our medical products are ce-marked, which ensures our product development and manufacturing facilities including hardware and management systems are controlled strictly under eu acts. We are also an iso9001 and iso13485 certified medical products manufacturer since 2010. Our main products include laryngeal masks, surgical skin marker, and tourniquet.

Scope
It conforms to gb /t 17144, iso 10370 and astm d4530 standards. The measure range of carbon residue is 0.10% (m/m) ~ 30.0% (m/m). The measurement results of this instrument for carbon residue value of more than 0.10% (m / m) of petroleum products is equivalent to the measurement results of conradson carbon method (gb/t 268, astm d189).
This instrument is also applicable to the determination of carbon residue of less than 0.10% (m / m), the composition of the distillate petroleum products. For such products, first, prepare 10% (v/v) distillation residue by gb/t 6536(astm d86) method, and then use this instrument to measure it.

Features
1, the instrument adopts the program automatic temperature control, automatic constant temperature system
2, the instrument adopts the automatic switching flow, convenient and quick
3, the instrument uses a one button operation, the whole test process can be fully automated
4, the instrument is used to protect the program, the test process and the phenomenon of abnormal temperature in the furnace after the instrument will automatically stop and alarm
5, the instrument adopts the stainless steel air guide pipe exhaust emissions, low carbon, environmental protection

Features
1, the instrument adopts the automatic tube furnace test method, program control tube furnace heating and moving
2, the instrument adopts the super thermal insulation material, is the tube furnace can work under high temperature
3, the instrument adopts the intelligent control system, with temperature setting, time setting and alarm function detection
4, the instrument uses a timing device, the alarm prompt

Scope
The instrument conforms to the standard astm d323, iso3007, gb/t8017, nfm07007. The instrument is suitable for measuring the vapor pressure of gasoline and other volatile petroleum products, and it is not suitable for the detection of vapor pressure of liquefied petroleum gas. The instrument is used to charge the cooled sample into the gas chamber of the vapor pressure measuring device, and the gas chamber is connected with the air of a certain temperature.

Features
1, the instrument adopts the integrated design, operation and maintenance is simple and convenient
2, the instrument adopts the pid temperature control system, temperature control precision is high, stable
3, the instrument adopts the automatic timing, when the alarm prompt system
4, the instrument uses a double elastic results, easy to operate parallel experiments
5, the instrument adopts the automatic vibration of the steam pressure, improve the accuracy of the experiment, reduce labor intensity

Technical parameters
1, power: ac220v + 10%50hz
2, input power: 0~1500w
3, ambient temperature: room temperature ~+30
4, output power: constant temperature heating: 1000w motor: 25w
5, temperature control precision: 37.8+ 0.1
6, the pressure gauge range: 0~200kpa
7, sensor: pt l00
8, automatic rotation angle of the instrument is 350

FDR-1901 Automatic micro carbon residue analyzer
Scope
It conforms to GB /T 17144, ISO 10370 and ASTM D4530 standards. The measure range of carbon residue is 0.10% (m/m) ~ 30.0% (m/m). The measurement results of this instrument for carbon residue value of more than 0.10% (m / m) of petroleum products is equivalent to the measurement results of Conradson Carbon method (GB/T 268, ASTM D189).
This instrument is also applicable to the determination of carbon residue of less than 0.10% (m / m), the composition of the distillate petroleum products. For such products, first, prepare 10% (V/V) distillation residue by GB/T 6536(ASTM D86) method, and then use this instrument to measure it.

Features
1, the instrument adopts the program automatic temperature control, automatic constant temperature system
2, the instrument adopts the automatic switching flow, convenient and quick
3, the instrument uses a one button operation, the whole test process can be fully automated
4, the instrument is used to protect the program, the test process and the phenomenon of abnormal temperature in the furnace after the instrument will automatically stop and alarm
5, the instrument adopts the stainless steel air guide pipe exhaust emissions, low carbon, environmental protection
6, the instrument adopts the prompt system, the end of the experiment, automatic alarm

Technical Parameters
1, the combustion chamber temperature range: room temperature ~ 500
2, the combustion chamber temperature accuracy: 500 ± 2.0 ; thermostat for 15min
3, the error of the set time:

Scope
It conforms to GB /T 17144, ISO 10370 and ASTM D4530 standards. The measure range of carbon residue is 0.10% (m/m) ~ 30.0% (m/m). The measurement results of this instrument for carbon residue value of more than 0.10% (m / m) of petroleum products is equivalent to the measurement results of Conradson Carbon method (GB/T 268, ASTM D189).
This instrument is also applicable to the determination of carbon residue of less than 0.10% (m / m), the composition of the distillate petroleum products. For such products, first, prepare 10% (V/V) distillation residue by GB/T 6536(ASTM D86) method, and then use this instrument to measure it.

Features
1, the instrument adopts the program automatic temperature control, automatic constant temperature system
2, the instrument adopts the automatic switching flow, convenient and quick
3, the instrument uses a one button operation, the whole test process can be fully automated
4, the instrument is used to protect the program, the test process and the phenomenon of abnormal temperature in the furnace after the instrument will automatically stop and alarm
5, the instrument adopts the stainless steel air guide pipe exhaust emissions, low carbon, environmental protection
6, the instrument adopts the prompt system, the end of the experiment, automatic alarm

Technical Parameters
1, the combustion chamber temperature range: room temperature ~ 500 ?
2, the combustion chamber temperature accuracy: 500 ? ± 2.0 ?; thermostat for 15min
3, the error of the set time:

Scope
This instrument can be used to determine the absolute viscosity of Newton liquid. Widely used in oil, paint, pulp, textile, food, medicine, adhesives, cosmetics and other production industries and research units. The instrument has the advantages of accurate, rapid, intuitive and simple measurement, and it can be used in various industries.

Features
1, this instrument uses the LCD display, the key mark is clear, the procedure design, the operation is simple
2, the instrument uses a 16 bit microcomputer processor as the core of the stepper motor with high breakdown drive, stable speed, accurate
3, this instrument adopts the procedure design, the operation is simple and convenient, the alarm function, the screen directly shows the viscosity, the rotational speed, the percentage of the torque, the rotor number
4, the temperature measurement range of the instrument is -20 C -100 C, wide temperature range detection.
5, the main control board of the instrument, the subdivision driver board all use the patch technology, circuit design using the current most advanced microcomputer processor, reasonable and compact structure layout. The instrument has a full range, all of the linearity of the measurement calibration through the PC interface, its measurement performance and function to achieve the same type of domestic advanced level.

Scope
The instrument conforms to the SH/T0090-91 and ASTM D1177 standards, the method is suitable for determine the freezing point of high boiling point and low boiling point engine coolant and concentrated liquid.

Features
1, this instrument uses the liquid crystal display, Chinese operation interface
2, this instrument adopts the single chip microcomputer automatic control, the experiment process need not be controlled manually
3, the instrument can detect the changes of various parameters, automatic detection results
4, the instrument has the function of self-diagnosis, prompt operation

Technical Parameters
1, Power: AC220V ±% 10 50Hz
2, temperature range: -70 â?? ~ room temperature
3, temperature accuracy: 0.1 â??
4, heating power: 800W
5, cooling power: 1000W